NewStatPress vulnerabilities

The NewStatPress plugin for WordPress up to version 1.4.5 is vulnerable to Stored Cross-Site Scripting via the 'Last referrers' meta box on the Overview admin page due to insufficient output escaping, allowing unauthenticated attackers to inject arbitrary scripts.

The NewStatPress plugin for WordPress in versions up to and including 1.4.5 is vulnerable to Stored Cross-Site Scripting via the 'QUERY_STRING / REQUEST_URI' parameter. Due to insufficient input sanitization and output escaping, an unauthenticated attacker can inject arbitrary scripts into pages that execute when a user visits the injected page. Exploitation requires that an administrator has placed the [NewStatPress type="Top Pages"] shortcode on a publicly viewable page, and that the attacker's crafted URL accumulates enough hits to appear in the top-N ranking.

The NewStatPress WordPress plugin before version 1.4.5 does not sanitize and escape data from unauthenticated visitor requests before storing and later outputting it in one of its widgets. This allows unauthenticated attackers to perform Stored Cross-Site Scripting attacks against users viewing the affected widget.

The NewStatPress plugin for WordPress in versions up to and including 1.4.3 is vulnerable to Stored Cross-Site Scripting via a regex bypass in the `nsp_shortcode` function due to insufficient input sanitization and output escaping on user-supplied attributes. This allows authenticated attackers with contributor-level access and above to inject arbitrary web scripts that execute when a user visits the injected page.